Patents by Inventor John Frederick Leutton

John Frederick Leutton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Handle for shopping trolleys
    Patent number: D530055
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: October 10, 2006
    Assignee: Sales Activation Solutions Group Limited
    Inventor: John Frederick Leutton